STTR Phase I: A Novel Thermal Spray System for Nanoparticle Embedded Functionally Gradient Materials

这个小企业技术转让（STTR）第一阶段项目旨在开发一种称为“混合喷涂”的新型热喷涂工艺，用于生产纳米颗粒分散的金属涂层。希望将纳米颗粒引入金属基质中以改善蠕变强度以及高温耐磨性和抗氧化性。这项工作将针对发电行业的涂料开发，在更高温度下运行的能力将提高效率，涂料的寿命将降低运营成本。中西部热喷涂（MTS）将开发在密歇根大学概念化的“混合喷涂”技术。该工艺提供了低成本线材和高生产率以及显著提高的涂层密度的优点。目前用于制造纳米颗粒嵌入工程材料的技术涉及多个处理步骤，导致高制造成本。因此，纳米颗粒分散涂料在商业应用中的广泛应用受到严重限制。待开发的“混合”喷雾系统可以是用于产生纳米颗粒并将其引入到用于不同应用的各种基质材料中的通用系统。

This Small Business Technology Transfer (STTR) Phase I project aims to develop a novel thermal spray coating process called "Hybrid Spray," for producing nano sized particulate dispersed metallic coatings. The introduction of nanoparticulates into the metal matrix is desired to improve creep strength as well as high temperature wear and oxidation resistance. This work will target the development of coatings for power generation industry where the ability to operate at higher temperatures will enable greater efficiencies and the longevity of coatings will reduce the operating costs. Midwest Thermal Spray (MTS) will develop the `Hybrid Spray' technology conceptualized at the University of Michigan. The process offers the benefits of low cost wire stock and high productivity combined with noticeably improved coating density. Current techniques for fabricating nano particle embedded engineered materials involve multiple processing steps leading to high manufacturing cost. As a result, the widespread application of nano particulate dispersed coatings in commercial applications is severely limited. The "Hybrid" spray system to be developed can be a generic system for creating and introducing nanoparticles into variety of matrix materials for different applications.